Find $x$ if $A O = 8.1 c m, B O = 5 c m, O C = 9 c m$ and $O D = x c m .$

4.1

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Solution

The correct option is D $4.5$ cm
When two chords intersect each other inside the circle then, we have

$O A \times O B = O C \times O D$

or, $8.1 \times 5 = 9 \times x$

or, $x = \frac{8.1 \times 5}{9}$

$x = 4.5$ cm

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Find x if AO=8.1cm,BO=5cm,OC=9cm and OD=xcm.

The correct option is D 4.5 cmWhen two chords intersect each other inside the circle then, we haveOA×OB=OC×ODor, 8.1×5=9×xor, x=8.1×59 x=4.5 cm

Find $x$ if $A O = 8.1 c m, B O = 5 c m, O C = 9 c m$ and $O D = x c m .$

The correct option is D $4.5$ cm
When two chords intersect each other inside the circle then, we have

$O A \times O B = O C \times O D$

or, $8.1 \times 5 = 9 \times x$

or, $x = \frac{8.1 \times 5}{9}$

$x = 4.5$ cm